钢波纹管涵洞受力与变形特性现场试验分析  

Field force and deformation characteristic test of corrugated steel pipe culvert

作　　者：乌延玲[1,2] 冯忠居[1] 王彦志 贾彦武[1] 熊山铭[1] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]赤峰市公路管理处,内蒙古赤峰024000

出　　处：《西安建筑科技大学学报（自然科学版）》2011年第4期513-516,共4页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：内蒙古自治区赤峰市交通建设科技基金资助项目(2009-KY029)

摘　　要：为搞清公路路基钢波纹管涵洞在填土荷载作用下的受力与变形特性,结合工程实际,通过现场试验,研究其在路基填筑过程中的工作性能.试验结果表明:钢波纹管涵洞内侧主要承受压应力,外侧主要承受拉应力;最大填土高度时,拉、压应力均在30 MPa左右;断面内、外侧的应变应力出现相反的拉压变化规律,且涵顶两侧45°位置为受力薄弱点.说明实际钢波纹管涵洞设计与施工中应给予关注,特别是在高填土荷载作用下,应对相应的部位进行加强或从施工工艺上采取措施.In order to know the force and deformation characteristic of corrugated steel pipe culvert in road with the filling load and based on field test,its performance was studied in the actual roadbed construction.The result shows that pulling stress is mainly borne at inside and outside endure pressure stress.The contrary variation of tension and pressure have been obtained of the stress and strain of inside and outside of corrugated steel pipe culvert,and 45 degrees position on either side of the culvert top is regarded as the stressed weak point.The design and construction of corrugated steel pipe culvert will be concerned and should take measures on construction technology especially with high filled load.

关 键 词：路基工程 钢波纹管涵洞 现场试验 受力与变形特性 

分 类 号：U449.83[建筑科学—桥梁与隧道工程]